Hairline cracks on acrylic

[markgutin]

A friend of mine has an acrylic tank and i saw some of these cracks and was wondering are they normal or is it a sign of the aquarium getting too old. It looks like an 100 gallon tank.I have an all glass tank so i don't know too much about acrylic tanks. Also is it repairable? As always any input is appreciated.

 

[Jvilla58]

Oh I believe that is crazing. It is normal. As long as bubbles don't form in the seams you will be fine.

 

[markgutin]

Oh I believe that is crazing. It is normal. As long as bubbles don't form in the seams you will be fine.

actually can you take a look at the second pic because those are the side seams and i don't know if those are considered "bubbles"? Thanks btw

 

[evad1]

looks like crazing...which is fine..
what you have to be worried about is at the seam between panels if i looks like salt creap. the panels are slowing coming apart..
here is a pic of an example